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I Need DC Input
4wd:
Not sure why my Seagate External is bootable? :huh:-CleverCat (March 05, 2012, 12:18 AM)
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It's most likely because it has a Primary partition that is marked as Active.
You can open Windows Disk Manager and check it.
CleverCat:
Not active - oh well doesn't seem to be a problem so will take off boot list?
4wd:
Not active - oh well doesn't seem to be a problem so will take off boot list?-CleverCat (March 05, 2012, 01:49 AM)
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Interesting, then again, I try never to have any more than one Primary partition on the system, (hence all the drives being Logical above), so I don't normally see any other bootable drive option in the BIOS.
tomos:
I unintentionally made an active primary partition on a usb stick a while back - it did cause some trouble if I booted with it plugged in.
Damned if I can remember how I got rid of it - it took a bit of looking...
But maybe in this case it's not important?
PS, I have this saved, so I think that's how I resolved it (I'm not recommending this - just throwing it out there!)
Spoiler
jnkevin 08-22-2009 at 03:56:22 PM
1. Windows +R
2. Type "cmd"
3. At the prompt type "diskpart"
4. then after the ">" symbol type " list disk"
DISKPART> list disk
Disk ### Status Size Free Dyn Gpt
-------- ---------- ------- ------- --- ---
Disk 0 Online 28 GB 1536 KB
Disk 1 Online 233 GB 993 KB
5.Now select the disk which you want to make INACTIVE (For instance if i want to make my Disk 1 as active i.e where the OS is installed and REQUIRED to boot, i need to select the drive which i want to make INACTIVE. In my example DISK 0)
DISKPART> SELECT DISK 0
Disk 0 is now the selected disk.
6. Type "list partition"
DISKPART> list partition
Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 Primary 28 GB 1024 KB
7. Since there is a single partition on DISK 0, select it by issuing the command "select partition 1"
DISKPART> select partition 1
Partition 1 is now the selected partition.
8.Type "inactive" - this will make disk 0 partition 1 as inactive
=============================
Explanation : This error crops up because you have been in Computer Management > Storage > Disk Management and selected more than 1 drive as ACTIVE together with the one which was already active- the one where your OS was .
Point to remember : THERE SHOULD BE ONLY ONE ACTIVE DRIVE SO YOU CANT SET MORE THAN ONE DRIVE AS ACTIVE
********************************IMPORTANT THING TO DO FIRST ***************************************
Also since you cant get your OS to boot you must specifically select the boot disk from where to boot.
On my PC it was F12-> then i selected "hard disk" from where i had all my drives listed.
From here you must select the drive where your OS was initially installed
Finally run the command 1-8 above the disable the other drives as ACTIVE.
************************************************************************************************
Hope i helped you
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Clipped from: http://www.tomshardware.co.uk/forum/237205-34-make-active-disk-active-dual-boot-problem
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Stoic Joker:
PS, I have this saved, so I think that's how I resolved it (I'm not recommending this - just throwing it out there!)-tomos (March 05, 2012, 09:36 AM)
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Yep that looks like the how. However diskpart is not for the uninitiated, as it's an extremely powerful utility that tends to reward type-Os with tragedy.
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